NCP1586 Low Voltage Synchronous Buck Controller
The NCP1586 is a low cost PWM controller designed to operate
from a 5 V or 12 V supply. This device is capable of producing an
output voltage as low as 0.8 V. This 8?pin device provides an optimal
level of integration to reduce size and cost of the power supply. The
NCP1586 provides a 1 A gate driver design and an internally set
275 kHz oscillator. In addition to the 1 A gate drive capability, other
efficiency enhancing features of the gate driver include adaptive
non?overlap circuitry. The NCP1586 also incorporates an externally
compensated error amplifier and a capacitor programmable soft?start
function. Protection features include programmable short circuit
protection and under voltage lockout (UVLO). The NCP1586 comes
in an 8?pin SOIC package.
Features
? Input Voltage Range from 4.5 to 13.2 V
? 275 kHz Internal Oscillator
? Boost Pin Operates to 26.5 V
? Voltage Mode PWM Control
? 0.8 V ±1.0 % Internal Reference Voltage
? Adjustable Output Voltage
? Capacitor Programmable Soft?Start
? Internal 1 A Gate Drivers
? 80% Max Duty Cycle
? Input Under Voltage Lockout
? Programmable Current Limit
? This is a Pb?Free Device
Applications
? Graphics Cards
? Desktop Computers
? Servers / Networking
? DSP & FPGA Power Supply
? DC?DC Regulator Modules